Top Science News

March 21, 2026

Top Headlines

New Pill Cuts “Bad” Cholesterol by 60% in Major Trial

Mar. 21, 2026 A new pill, enlicitide, reduced LDL (“bad”) cholesterol by about 60% in a large clinical trial, matching the power of injectable therapies. Because it’s taken orally, it could overcome one of the biggest barriers keeping patients from using ...

New AI Tool Predicts Cancer Spread with Surprising Accuracy

Mar. 21, 2026 Researchers have discovered that cancer spread isn’t random—it follows a kind of biological “program.” By studying colon tumor cells, they identified gene patterns that signal whether a cancer is likely to metastasize. Their AI model, ...

Harvard Engineers Build Chip That Can Twist and Control Light in Real Time

Mar. 21, 2026 Scientists at Harvard have built a miniature device that can twist and tune light in real time. By rotating two stacked photonic crystals and adjusting their spacing with a tiny mechanical system, they can control how light’s “handedness” ...

Scientists Just Found a Hidden 48-dimensional World in Quantum Light

Mar. 21, 2026 A routine quantum optics technique just revealed an extraordinary secret: entangled light can carry incredibly complex topological structures. Researchers found these hidden patterns reach up to 48 dimensions, offering a vast new “alphabet” for ...

This Crocodile Ran Like a Greyhound Across Prehistoric Britain 200 Million Years Ago

Mar. 21, 2026 A newly discovered Triassic reptile from the UK looked more like a racing greyhound than a crocodile, built for speed on land. With long legs and a lightweight body, it hunted small animals in a dry, ...

Tectonic Shift: Earth Was Already Moving 3.5 Billion Years Ago

Mar. 21, 2026 Scientists have uncovered the oldest direct evidence yet that Earth’s tectonic plates were on the move 3.5 billion years ago. By analyzing magnetic fingerprints in ancient rocks, they reconstructed how parts of the planet slowly drifted and even ...

Scientists Turn Probiotic Bacteria Into Tumor-hunting Cancer Killers

Mar. 21, 2026 Scientists have engineered probiotic bacteria to act as tumor-seeking drug factories. In mice, these bacteria infiltrated tumors and produced a cancer-fighting drug right where it was needed. This targeted approach could make treatments more ...

These “Forever Chemicals” Could Be Weakening Kids’ Bones for Life

Mar. 21, 2026 “Forever chemicals” may be affecting kids in ways that last a lifetime. A new study links early PFAS exposure to lower bone density during the teen years, especially in girls. Researchers also found that when exposure happens may play a key ...

Men Are Losing a Key Chromosome with Age and It May Be Deadly

Mar. 20, 2026 Aging men often lose the Y chromosome in a growing number of their cells—and it may be far more dangerous than once believed. This loss has been linked to heart disease, cancer, Alzheimer’s, and shorter lifespans. Researchers suspect Y-less ...

Huge Study Finds No Evidence Cannabis Helps Anxiety, Depression, or PTSD

Mar. 20, 2026 The largest review of medicinal cannabis to date found it doesn’t effectively treat anxiety, depression, or PTSD—despite millions using it for those reasons. Researchers warn it could even make mental health worse, raising risks like psychosis ...

This Common Vaccine Cuts Heart Risk Nearly in Half in New Study

Mar. 20, 2026 A shingles vaccine might double as a powerful heart protector. In people already at high risk, it cut major cardiac events by 46% and deaths by an impressive 66% within a year. Scientists think preventing shingles may also stop clot-related ...

This Virus Therapy Supercharges the Immune System Against Brain Cancer

Mar. 20, 2026 Scientists have found a way to make one of the most aggressive brain tumors vulnerable to the immune system. A single injection of a modified virus can invade glioblastoma, kill cancer cells, and summon immune fighters deep into the tumor. These ...

Latest Headlines

updated 8:05am EDT

Closing Your Eyes to Hear Better Might Be a Big Mistake

Mar. 20, 2026 Many people believe closing their eyes sharpens hearing, but that is not always true. In noisy settings, participants struggled more to hear faint sounds with their eyes closed, while matching ...

Scientists Solve 12,800-Year-Old Climate Mystery Hidden in Greenland Ice

Mar. 20, 2026 A mysterious spike of platinum buried deep in Greenland’s ice has long fueled theories of a catastrophic comet or asteroid strike 12,800 years ago—possibly triggering a sudden return to icy ...

Astronomers Discover Nearby Galaxy Was Shattered by Cosmic Crash

Mar. 20, 2026 A nearby galaxy is behaving strangely—and now scientists know why. The Small Magellanic Cloud’s stars move in chaotic patterns because it slammed into its larger neighbor millions of years ago. ...

Scientists Turn CO2 Into Fuel Using Breakthrough Single-Atom Catalyst

Mar. 20, 2026 Researchers have created a cutting-edge catalyst that turns CO2 into methanol more efficiently than ever before. Instead of using clumps of metal atoms, they engineered a system where each single ...

What Happens After Ozempic Shocked Researchers

Mar. 19, 2026 Stopping popular weight-loss injections like Ozempic or Mounjaro might not trigger the dramatic rebound many fear. A large real-world study of nearly 8,000 patients found that most people who ...

Scientists Thought Ravens Followed Wolves. They Were Wrong

Mar. 19, 2026 Ravens have long been thought to follow wolves to find food, but new research shows they’re far more strategic. By tracking both animals in Yellowstone, scientists discovered that ravens memorize ...

The Best Strength Training Plan Might Be Simpler Than You Think

Mar. 19, 2026 New strength training guidelines emphasize that doing any resistance training is what truly matters. Based on decades of research, experts say even simple routines can increase muscle, strength, and ...

Physicists Discover a Heavy Cousin of the Proton at CERN’s Large Hadron Collider

Mar. 19, 2026 A new subatomic particle known as the Ξcc⁺ has been discovered at CERN’s Large Hadron Collider. This heavy proton-like particle contains two ...

Scientists Discover Tiny Rocket Engines Inside Malaria Parasites

Mar. 19, 2026 Malaria parasites contain tiny spinning crystals that have puzzled scientists for years. New research reveals they’re powered by a rocket-like reaction that breaks down hydrogen peroxide, releasing ...

Scientists Recreated a Dinosaur Nest to Solve a 70-Million-Year-Old Mystery

Mar. 19, 2026 Scientists recreated a life-size oviraptor nest to understand how these dinosaurs hatched their eggs. Their experiments showed the parent likely couldn’t heat all the eggs directly, meaning ...

JWST Reveals a Strange Sulfur World Unlike Any Planet We Know

Mar. 17, 2026 Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

Even JWST Can’t See Through This Planet’s Massive Haze

Mar. 18, 2026 Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from seeing what it’s made of. Observations from JWST revealed that this ...

This Massive Crater Could Expose the Heart of a Lost Planet

Mar. 17, 2026 A mysterious metal-rich asteroid called Psyche has been baffling scientists for over two centuries, and its true origin remains one of the biggest unanswered questions in planetary science. Is it the ...

Scientists Just Discovered Bull Sharks Have Friends

Mar. 17, 2026 Bull sharks may have a reputation as lone hunters, but new research reveals they actually form social bonds and even have preferred “friends.” After six years of observing 184 sharks in Fiji, ...

Crops Irrigated With Wastewater Store Drugs in Their Leaves

Mar. 15, 2026 Scientists studying crops irrigated with treated wastewater discovered that trace pharmaceuticals often collect in plant leaves. Tomatoes, carrots, and lettuce absorbed medications such as ...

Our Sun May Have Escaped the Milky Way’s Center With Thousands of Twin Stars

Mar. 13, 2026 Scientists have uncovered evidence that our Sun may have traveled across the Milky Way as part of a massive migration of Sun-like stars billions of years ago. The journey may have carried the solar ...

A Lab Mistake at Cambridge Reveals a Powerful New Way to Modify Drug Molecules

Mar. 14, 2026 Cambridge scientists have discovered a light-powered chemical reaction that lets researchers modify complex drug molecules at the final stages of development. Unlike traditional methods that rely on ...

Scientists Discover Ancient DNA “switches” Hidden in Plants for 400 Million Years

Mar. 14, 2026 Scientists have uncovered an enormous hidden archive of plant DNA that has endured for more than 400 million years. By comparing hundreds of plant genomes, researchers identified more than 2.3 ...

Extreme Weather Is Hitting Baby Birds Hard in a 60-Year Study

Mar. 12, 2026 Decades of data from over 80,000 great tits reveal that extreme weather can shape the fate of baby birds. Cold snaps soon after hatching and heavy rain later in development shrink nestling body mass ...

A Black Hole and Neutron Star Just Collided in a Strange Oval Orbit

Mar. 12, 2026 Scientists analyzing a gravitational-wave signal have discovered that a neutron star and black hole spiraled together on an oval-shaped orbit just before merging. This unusual motion, detected in the ...

Astronomers Think They Just Witnessed Two Planets Colliding

Mar. 11, 2026 Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Strange Chirping Supernova Confirms Long-Debated Magnetar Theory

Mar. 11, 2026 Astronomers have discovered a strange new signal coming from an exploding star — a “chirp” that speeds up over time, similar to the signals seen when black holes collide. The unusual pattern ...

Depression May Start With an Energy Problem in Brain Cells

Mar. 12, 2026 Researchers have discovered a surprising change in how cells produce energy in people with depression. Brain and blood cells in young adults with major depressive disorder produced more energy ...

Scientists Discover Hedgehogs Can Hear Ultrasound and It Could Save Them from Cars

Mar. 12, 2026 Researchers have discovered that hedgehogs can hear ultrasound, a surprising ability that could help protect them from cars. Since road traffic kills large numbers of hedgehogs, scientists believe ...

Cannabis Study Finds THC Can Create False Memories

Mar. 11, 2026 THC doesn’t just blur memories—it can create new ones that never happened. In a controlled experiment, cannabis users were much more likely to recall words that were never shown and struggled ...

Ocean Warming May Supercharge a Tiny Microbe That Controls Marine Nutrients

Mar. 11, 2026 As deep-sea waters warm, scientists expected trouble for the microbes that help keep ocean chemistry in balance. Instead, researchers found that Nitrosopumilus maritimus can adapt to warmer, ...

A Surprising Blood Protein Pattern May Reveal Alzheimer’s

Mar. 12, 2026 A new study suggests Alzheimer’s disease may be detectable through subtle shape changes in proteins found in the blood. Researchers discovered that structural differences in three blood proteins ...

Light-Guided Evolution Creates Proteins That Can Switch, Sense, and Compute

Mar. 9, 2026 Researchers have created a method called optovolution that uses light to guide the evolution of proteins with dynamic behaviors. By engineering yeast cells so their survival depended on proteins ...

Hidden Metabolism Found Operating Inside the Cell Nucleus

Mar. 9, 2026 Researchers have found hundreds of metabolic enzymes attached to human DNA inside the cell nucleus. Different tissues and cancers show unique patterns of these enzymes, forming a “nuclear metabolic ...

NASA’s DART Asteroid Smash Shows We Could Deflect a Future Threat

Mar. 9, 2026 When NASA’s DART spacecraft deliberately crashed into the asteroid moonlet Dimorphos, it did more than change the asteroid’s local orbit — it slightly shifted the path of the entire asteroid ...